How to get the Nth digit of an integer with bit-wise operations?

Question

Example. 123456, and we want the third from the right (\'4\') out.

The idea in practise is to access each digit seperately (ie. 6 5 4 3 2 1).

C/C++/C# preferred.

Answer 1

Following code will give nth digit from right in a number:

public void getDigit(long n,int k){
    int i=0;
    long r =0;
    while(i